* {
    margin: 0;
    padding: 0;
}

body {
    background-color: #87CEFA;
    height: 100%;
}

.max {
    width: 1000px;
    height: 1000px;
    border: 2px solid black;
    margin: 0 auto;
}


/* 以下是所有盒子 */

.daohang {
    width: 1000px;
    height: 250px;
    border: 2px solid black;
    position: relative;
    background-image: url(../images/首页/图1（背景图）.jpg);
    background-size: 1000px 250px;
}

.daohanglan {
    width: 1000px;
    height: 30px;
    border: 1px solid black;
    text-align: center;
}

.picture2 {
    width: 300px;
    height: 200px;
    margin-top: 20px;
    margin-left: 20px;
    float: left;
}

.picture4 {
    width: 280px;
    height: 450px;
    margin-top: 20px;
    margin-left: 360px;
    float: left;
}

.picture3 {
    width: 300px;
    height: 200px;
    margin-top: 20px;
    margin-left: 360px;
}


/* 以下是有文字 */

.text1 {
    margin-top: 100px;
    margin-left: 350px;
    font-size: 27px;
    color: beige;
}


/* 以下是span */

.s1,
.s2 {
    background-color: chartreuse;
    display: inline-block;
    border: 1px solid chartreuse;
    border-radius: 10px;
    font-size: 20px;
    margin-left: 30px;
}

.s3 {
    display: inline-block;
    width: 400px;
    height: 300px;
    transform: translate(80px, -180px);
    font-size: 30px;
    color: black;
}


/* 以下是图片 */

.tu2 {
    width: 300px;
    height: 200px;
}

.tu3 {
    width: 300px;
    height: 200px;
    transform: translate(0, -453px);
}

.tu4 {
    width: 280px;
    height: 450px;
}


/* 以下为a标签 */

a {
    text-decoration: none;
}